A Regularized Interface Model for Simulating the Response of Adhesive Joints
DOI:
https://doi.org/10.35219/awet.2024.12Keywords:
Adhesive joints, fracture, interface, cohesive-zone models, damage, regularization, gradientAbstract
A regularized interface damage model is presented grounded on the cohesive-zone concept. This is obtained using a gradient-based formulation, which is equivalent to the introduction of the laplacian of a scalar damage field into the threshold function of the corresponding local model. Unlike the classical cohesive-zone formulations, damage is driven by a non-local energy release rate and the size of the process zone is controlled by an independent model parameter. The capabilities of the proposed approach are show via a mode-I fracture problem for an adhesive joint. Numerical results illustrate the effects of the gradient dependence against the usual cohesive zone implementation.
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Papers accepted for publication become the copyrighted property of the Annals of "Dunarea de Jos" University of Galati, Fascicle XII, Welding Equipment and Technology. No part of the publication may be reproduced or transmitted in any form, or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, except in limited quantities for the non-commercial purposes of scientific or educational advancement, without permission in writing from the Editorial Board.
